Video processing device and method of video processing

Abstract

According to one embodiment, a video processing device includes: an operator configured to accept a gain adjustment value with respect to at least any one of an R signal, a G signal, and a B signal of a video signal from a user; a gain adjuster configured to obtain a gain by using a white balance adjustment value and the gain adjustment value with respect to each of the R, G, and B signals; a determiner configured to determine whether any of the gain of the R signal, the gain of the G signal, and the gain of the B signal is equal to or greater than 1; and a processor configured to decrease the gain when any of the gain of the R signal, the gain of the G signal, and the gain of the B signal is equal to or greater than 1.

What is claimed is: 
     
       1. A video processing device comprising:
 an operator configured to accept a gain adjustment value with respect to at least any one of a Red (R) signal, a Green (G) signal, and a Blue (B) signal of a video signal from a user; 
 a gain adjuster configured to obtain a gain by using a white balance adjustment value and the gain adjustment value with respect to each of the R, G, and B signals of the video signal; 
 a determiner configured to determine whether any of the gain of the R signal, the gain of the G signal, and the gain of the B signal is equal to or greater than 1; and 
 
       a processor configured to decrease the gain when any of the gain of the R signal, the gain of the G signal, and the gain of the B signal is equal to or greater than 1. 
     
     
       2. The video processing device of  claim 1 , wherein,
 the processor comprises a contrast adjuster configured to decrease a contrast value of the video signal when any of the gain of the R signal, the gain of the G signal, and the gain of the B signal is equal to or greater than 1; and 
 the gain adjuster is configured to obtain the gain by using the white balance adjustment value and the gain adjustment value with respect to each of the R signal, the G signal, and the B signal of the video signal of which the contrast value is decreased. 
 
     
     
       3. The video processing device of  claim 1 , wherein,
 the processor is further comprising: 
 a gamma corrector configured to perform a gamma correction when any of the gain of the R signal, the gain of the G signal, and the gain of the B signal is equal to or greater than 1, wherein the gamma correction is performed by adding a predetermined offset value to a gamma curve of a color signal whose gain is equal to or greater than 1. 
 
     
     
       4. The video processing device of  claim 1 , wherein the gain adjuster is configured to obtain the gain by adding the white balance adjustment value and the gain adjustment value. 
     
     
       5. The video processing device of  claim 1 , further comprising:
 a display configured to display the adjusted video signal. 
 
     
     
       6. A method of video processing comprising:
 accepting a gain adjustment value with respect to at least any one of a Red (R) signal, a Green (G) signal, and a Blue (B) signal of a video signal from a user; 
 obtaining a gain by using a white balance adjustment value and the gain adjustment value with respect to each of the R, G, and B signals of the video signal; 
 determining whether any of the gain of the R signal, the gain of the G signal, and the gain of the B signal is equal to or greater than 1; and 
 decreasing the gain when any of the gain of the R signal, the gain of the G signal, and the gain of the B signal is equal to or greater than 1.